What is Carl Rex's NPI number?

Carl Rex's National Provider Identifier (NPI) is 1366944258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Carl Rex's specialty?

Carl Rex is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).

Where is Carl Rex located?

Carl Rex's practice location on file with NPPES is 4150 Clement St Bldg 200, San Francisco, CA 94121-1563.

What is Carl Rex's phone number?

The practice phone number listed in the NPPES registry for Carl Rex is (415) 221-4810.

Is Carl Rex's NPI active?

Yes — Carl Rex's NPI (1366944258) is active in the NPPES registry as of the last update on 2018-03-06.

IndividualActive

Carl Rex

NPI 1366944258 · Student in an Organized Health Care Education/Training Program · San Francisco, CA

Carl Rex is a Student in an Organized Health Care Education/Training Program provider in San Francisco, CA (NPI 1366944258).

Provider details

NPI number: 1366944258
Entity type: Individual
Primary specialty: Student in an Organized Health Care Education/Training ProgramStudent, Health Care
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Student in an Organized Health Care Education/Training ProgramPrimary390200000X
Student, Health Care

Profile Score

Established profile(62/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
8 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

4150 Clement St Bldg 200

San Francisco, CA 94121-1563

Phone: (415) 221-4810

Fax: (415) 750-6603

Street-level locationGet directions

More CA providers

Mailing address

22w284 Temple Dr

Medinah, IL 60157-9504

Enumerated: 2018-03-06
Last updated: 2018-03-06

Frequently asked questions

What is Carl Rex's NPI number?: Carl Rex's National Provider Identifier (NPI) is 1366944258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Carl Rex's specialty?: Carl Rex is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
Where is Carl Rex located?: Carl Rex's practice location on file with NPPES is 4150 Clement St Bldg 200, San Francisco, CA 94121-1563.
What is Carl Rex's phone number?: The practice phone number listed in the NPPES registry for Carl Rex is (415) 221-4810.
Is Carl Rex's NPI active?: Yes — Carl Rex's NPI (1366944258) is active in the NPPES registry as of the last update on 2018-03-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.